Diff: MACROS.h

Revision:

0:eb2522b41db8

Child:

8:775f860e94d3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MACROS.h	Sat Nov 20 16:54:05 2010 +0000
@@ -0,0 +1,61 @@
+/*
+    Copyright (c) 2010 Andy Kirkham
+ 
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+ 
+    The above copyright notice and this permission notice shall be included in
+    all copies or substantial portions of the Software.
+ 
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+    THE SOFTWARE.
+*/
+
+#ifndef MODSERIAL_MACROS_H
+#define MODSERIAL_MACROS_H
+
+#define MODSERIAL_RBR  0x00
+#define MODSERIAL_THR  0x00
+#define MODSERIAL_DLL  0x00
+#define MODSERIAL_IER  0x04
+#define MODSERIAL_DML  0x04
+#define MODSERIAL_IIR  0x08
+#define MODSERIAL_FCR  0x08
+#define MODSERIAL_LCR  0x0C
+#define MODSERIAL_LSR  0x14
+#define MODSERIAL_SCR  0x1C
+#define MODSERIAL_ACR  0x20
+#define MODSERIAL_ICR  0x24
+#define MODSERIAL_FDR  0x28
+#define MODSERIAL_TER  0x30
+
+#define MODSERIAL_FIFO_ENABLE   1
+#define MODSERIAL_FIFO_RX_RESET 2
+#define MODSERIAL_FIFO_TX_RESET 4
+
+#define _RBR    *((char *)_base+MODSERIAL_RBR)
+#define _THR    *((char *)_base+MODSERIAL_THR)
+#define _IIR    *((char *)_base+MODSERIAL_IIR)
+#define _IER    *((char *)_base+MODSERIAL_IER)
+#define _LSR    *((char *)_base+MODSERIAL_LSR)
+#define _FCR    *((char *)_base+MODSERIAL_FCR)
+
+#define MODSERIAL_TX_BUFFER_EMPTY (buffer_count[TxIrq]==0)
+#define MODSERIAL_RX_BUFFER_EMPTY (buffer_count[RxIrq]==0)
+#define MODSERIAL_TX_BUFFER_FULL  (buffer_count[TxIrq]==buffer_size[TxIrq])
+#define MODSERIAL_RX_BUFFER_FULL  (buffer_count[RxIrq]==buffer_size[RxIrq])
+
+#define MODSERIAL_THR_HAS_SPACE (int)_LSR&(1UL<<5)
+#define MODSERIAL_TEMT_IS_EMPTY (int)_LSR&(1UL<<6)
+#define MODSERIAL_RBR_HAS_DATA  (int)_LSR&0x1
+
+#endif